Lipids

• Triglycerides


  -glycerol molecules and 3 fatty acid chains can be saturated or unsaturated
• Ester bonds


  -former by condensation reaction between each of the three OH groups on the glycerol and OH group of each fatty acid chain
• Phospholipids


  -glycerol molecule

  -phosphate groups and two fatty acid chains
• Saturated fatty acids


  -don't have any double bonds between their carbon atoms
• Unsaturated fatty acids


  -have double bonds which means they contain fewer hydrogen atoms